History Islam -- 53 History -- 50 Arabic language -- 45 Islamic Empire -- 31 Islamic law -- 18 Hadith -- 17 more ... Islamic civilization 17 Arabs -- 16 Grammar -- 15 Islam 15 Islamic philosophy -- 15 Qur'an -- 14 Study and teaching -- 14 Sufism -- 11 Authorities 8 Criticism, interpretation, etc. -- 8 Philosophy 8 Politics and government 8 Caliphs 7 Interpretation and construction 7 Philosophy -- 7 Study and teaching 7 Arabian Peninsula -- 6 Arabic literature -- 6 Civilization, Arab -- 6 Doctrines 6 Hadith 6 Hermeneutics 6 History and criticism 6 less ...